基于拓扑搜索的水电站辅机系统动态仿真建模

应用拓扑搜索技术进行了水电站辅机系统的动态建模,提出了适用于辅机管网系统的拓扑搜索算法,建立了适用于动态计算的管网元件模型,利用拓扑搜索结果合成了便于计算的管网回路,建立相应的管网动态方程,并应用线性化理论将互相耦合的非线性方程化成线性方程迭代求解。该算法快速、适应管网及其元件工况的复杂变化,其计算模型能反映出辅机元件的中间过程,拓扑搜索较好地处理了不通支路,有效避免了管网计算的"死点","死网"问题。其算法和模型已经在某实际水电站的仿真系统中得到应用,验证了算法和模型的有效性。

地下变电站辅机控制仿真系统的研究

地下变电站辅机系统具有设备类型繁多、控制类型繁杂、关联复杂等问题。为此,采用XML语言对整个仿真系统进行建模,使用分层设计的方式实现人机交互,利用标准数据库进行外部数据接口设计,对各个子系统之间的数据交互进行模块化设计。根据地下变电站辅机系统特点,设计和实现了辅控后台仿真以及日常巡视、操作和事故处理等子系统。应用结果表明,该系统具有较好的可扩展性和可维护性。

Visualization aided system of hydropower engineering management

For the purpose of realizing the information visualization of hydropower engineering management, we construeted three kinds of graphics models sorted by hierarchy for system modelling, employed the construction simulation system to simulate the real-time construction behaviours, introduced the graphics rendering system to organize and update the virtual scene, and designed the interaction system to respond to the user-initiated and simulation-initiated events. So, the real-time, interactive visualization aided system of hydropower engineering management is developed. Eventually, the effectiveness and capabilities of the system are showed through the application examples in China.